diff --git a/docs/conf.py b/docs/conf.py
index 5f419e603d5036ba3d2791da7dfb315b026bdb23..b5ba5a87646c4138170ce455542c789bf5c1d0ca 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -87,7 +87,7 @@ todo_include_todos = False
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = "alabaster"
+html_theme = "sphinx_rtd_theme"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
diff --git a/pyproject.toml b/pyproject.toml
index 87782fcb973d44ddb98772fd478ab6f1de33310a..2c5febddb7ba44616923948a64d61a851a25dc9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,6 +25,7 @@ requests = "^2"
 Sphinx = "^4.5.0"
 coverage = "^6.3.2"
 myst-parser = "^0.17.0"
+sphinx-rtd-theme = "^1.0.0"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]